Finding the Fourth Proportional to 490,187,350.42, 676,482,474.60 and 275,673,495.05
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Solution
The fourth proportional to 490,187,350.42, 676,482,474.60 and 275,673,495.05 is: 380,442,881.60
Step by Step Solution
- Step 1: Write the proportion equation
490,187,350.42 : 676,482,474.60 = 275,673,495.05 : x - Step 2: Convert to fraction form
490,187,350.42/676,482,474.60 = 275,673,495.05/x - Step 3: Cross multiply
490,187,350.42x = 676,482,474.60 × 275,673,495.05 - Step 4: Simplify right side
490,187,350.42x = 186,488,288,115,435,232 - Step 5: Solve for x
x = 186,488,288,115,435,232/490,187,350.42 - Step 6: Final answer
x = 380,442,881.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.